54results about How to "Measurement science" patented technology

The invention discloses a simulating device for fluid flow safety evaluation of oil-gas pipelines. The device comprises a multiphase flow circulating system, a separating system, a fluid injecting system and a waste gas recovery system. The device disclosed by the invention emerges on the basis of fully considering the current fluid flow safety hotspot problem and is capable of simulating a low-temperature high-pressure environment to carry out the fluid flow safety evaluation of the oil-gas pipelines, wherein the evaluation content comprises oil-gas pipeline blockage caused by problems such as hydrate and wax deposit and the oil-gas transmission safety problem caused by pipeline corrosion. The device disclosed by the invention is not limited to the evaluation content and can also be used for exploring the research on the evaluation of multi-phase fluid flow regularity, hydrate inhibitor performance and the like. The device disclosed by the invention has the characteristics of reasonable structure, ingenious design, operational flexibility, accuracy in measurement and the like.

The invention relates to a method and a device suitable for measuring the fluffing and pilling amount and abrasion amount of a textile. The device is composed of a cloth sample barrel for coiling and clamping the textile, a rubbing mechanism for fluffing and pilling a cloth sample, a mini-type dust collector for collecting fallen fibers and fuzzy balls, an electrostatic electrode for assisting filoplume to be vertical, a collector for shearing and collecting the fuzzy balls and the filoplume, an optical measurement system for observing the fuzzy balls of the cloth sample, an electronic scale for weighing the weight of the filoplume fuzzy balls, a data acquisition and control system and a computer. The measurement method comprises the following steps: after coiling the cloth sample by equal tension, immediately measuring the filoplume significance as well as the quantity, form, size and distribution of the fuzzy balls; rubbing, fluffing and pilling to prepare a sample and synchronously measuring the process and measuring the filoplume significance of a final rubbing sample, the fuzzy ball quantity, the abrasion to the filoplume fuzzy balls and the remaining amount. The device and the method are ingenious, practical, accurate and quantitative; in-situ measurement for one machine with a plurality of purposes and one measurement process with a plurality of indexes is realized; the device and the method can be used for preparing the sample by fluffing and pilling the textile, measuring the fluffing and pilling amount and abrasion amount of the textile, and carrying out comprehensive analysis and evaluation.

The invention relates to a device and method used for measuring the pilling form and pulling force of densely arranged yarns. The device consists of a yarn winding mechanism, a yarn grinding mechanism, a yarn feeding mechanism, a translational driving mechanism, a wearer collector, a microscopic camera system, a clamping and pulling mechanism, and a control and data analysis system. The method comprises the steps of bridging and rotating the yarn feeding mechanism and the yarn grinding mechanism through the translational driving mechanism, kinetically matching with the yarn winding mechanism to achieve the winding of the densely arranged yarns and yarn grinding sample preparation, and carrying out on-line measurement on yarn samples in the process of yarn grinding as well as comprehensive measurement, calculation and evaluation on yarn grinding samples in a final state. The device is ingenious in structure, practical, and precise and quantitative in measurement, and the device and the method are an in-situ measuring device and an in-situ measuring method which are multi-purpose and multi-index in one measurement. The device and the method can be used for the measurement of the pilling quantity, form and wear quantity of the yarns and pulling forces of hairiness and hair bulbs as well as the comprehensive evaluation of the pilling resistance.

The invention relates to a polygonal-barrel tension-controllable fuzzing and pilling form and pulling measurement device and method. The device comprises a polygonal barrel, a friction mechanism, a tension mechanism, a microscopy photographing mechanism, a pulling mechanism, a creel, a static raising device and a control and data collection analysis system. The method includes the steps that after yarns are arranged and wound, by means of the polygonal barrel rotating angle by angle clockwise, raising, form observation and fuzzing and pilling sample preparation are carried out synchronously angle by angle on original yarn, ground yarn is obtained, raising and form observation are carried out synchronously angle by angle on the ground yarn until friction sample preparation and form measurement of all angles are finished, and then a microscopy form value and a pull force curve of yarn hairness and hair balls pulled from the ultimate ground yarn which pre-tension is exerted on are measured angle by angle. The measurement device and method are quick, easy and convenient to use, practical and accurate, can be used for fuzzing and pilling sample preparation of the yarn, measurement of fuzzing and pilling yarn hairness, hair ball quantity and form and the pulling curve and comprehensive evaluation of anti-pilling performance of the yarn.

The invention discloses a fine dried noodle elasticity modulus measuring method based on pressure lever post-buckling. A load measuring device is installed firstly, a static pressure head of the load measuring device is fixed on a base, a force sensor is arranged on a movable arm of the load measuring device, and then a dynamic pressure head is fixedly connected with the force sensor; a certain number of fine dried noodles cut to have corresponding length are respectively arranged between the static pressure head and the dynamic pressure head; and the amount of movement of the dynamic pressure head is determined according to the length of the fine dried noodle and an set intersection angle of the end part of a twisted curve, then the load measuring device is started again, the dynamic pressure head is driven by the load measuring device to load the fine dried noodles in a speed of 0.01mm/s, load corresponding to the amount of movement of the dynamic pressure head is measured by the load measuring device, and at last the fine dried noodle elasticity modulus is counted by a formula relationship. The invention uses pressure lever stability principle and large deflection theory of mechanics of materials to establish the relationship of axial compression, the end part intersection angle and pressure, establishes a counting method of the fine dried noodle elasticity modulus, has simple and convenient measuring method and high precision, and can control the length of the fine dried noodle elasticity modulus to be between 60 mm and 220mm.

The invention discloses a rapid tester for a paper pulp kappa number and a control method of the rapid tester. The rapid tester comprises a reaction tank, three liquid adding units, a magnetic stirrer, a stepping motor, a sliding rail connected with the stepping motor, a slide block arranged on the sliding rail, an upper limiting switch, a lower limiting switch, a bracket fixedly connected with the slide block, a cuvette, a waste liquid tank, a peristaltic pump, a light source, a photovoltaic conversion device and a data displaying device, wherein the three liquid adding units are communicated with the reaction tank and are the same in structure; the magnetic stirrer is used for bearing the reaction tank; the peristaltic pump can be used for pumping liquid from the reaction tank to the waste liquid tank through the cuvette; light emitted by the light source passes through the cuvette and is received by the photovoltaic conversion device, and then the light is converted and conveyed into a single chip microcomputer; after the tester is electrified, self detection is carried out to ensure that the tester is at a normal initial state and simultaneously a power supply is driven to emit the light to pre-heat; before a sample to be detected is detected officially, blank deduction, base solution detection and standard sample detection operations need to be carried out firstly; after an experiment is finished, the device is washed.

The invention relates to a negative ion performance measuring device and method for negative ion textile. The negative ion performance measuring device for negative ion textile comprises a cover-shaped glass box body (01) and a box body base (02) arranged below the glass box body (01), a winding press roller (03), a transmission press roller (04) and a heating resistor (05) installed in the glassbox body (01) and located on a box body base, and a temperature sensor (032) and a pressure sensor (042) installed in a winding roller (031) of the winding press roller (03) and a transmission roller(041) of the transmission press roller (04) respectively. The device also comprises an external test controller (06), a negative ion tester (07), an air inlet fan (09) installed on an air inlet of theglass box body, an exhaust fan (11) installed on an exhaust port of the glass box body, and a hollow pipe (071) connecting the negative ion tester and the exhaust port of the glass box body. The testcontroller (06) is electrically connected with the heating resistor (05), motors used for driving the winding press roller (03) and the transmission press roller (04) to rotate, and the temperature sensor (032) and the pressure sensor (042). The negative ion performance of negative ion fiber and negative ion fabric can be accurately measured.

The invention relates to a device and method for measuring friction fuzzing and pilling forms and a pulling-out force of bobbin yarns. The device comprises a cop creel for clamping cops to rotate, a friction mechanism for fuzzing and pilling bobbin yarns, a collecting mechanism for collecting shaving and shearing filoplumes and fuzzy balls, a static raising device for helping filoplumes to stand, a pulling-out mechanism used for measuring the pulling-out force of the filoplumes and fuzzy balls, an imaging system for observing the filoplumes and fuzzy balls of the bobbin yarns, a computer and a data acquiring and controlling system. The method comprises the steps of: measuring the prominence of the filoplumes and the number, the form size and distribution of the fuzzy balls after coaxially jacking and clamping the cops, carrying out friction for fuzzing and pilling and synchronously measuring the prominence of the filoplumes, the number of the fuzzy balls, the abrasion loss and retention of the filoplumes and fuzzy balls, and the pulling-out force of the filoplumes and fuzzy balls of the process and a final friction sample. The device and method are exquisite, practical, accurate and quantitative, and can be used for measuring the fuzzing and pilling forms of the bobbin yarns and comprehensively evaluating the fuzzing and pilling resistance. In situ measurement of multiple functions in one machine and multiple indexes in one-time measurement is adopted in the device and method.

The invention relates to a device and a method for measuring fuzzing amount, balling amount and morphology during pressurized yarn grinding of polygonal barrels. The device comprises four multiples of polygonal barrels, a friction mechanism, a tension mechanism, a projection and pickup mechanism, a creel, an electrostatic raising device and a control and data acquisition analysis system. The method comprises the steps of accomplishing close packing and yarn winding to form a yarn winding sample, rotating clockwise directly through the polygonal barrels angle by angle, observing raising of the yarn winding sample angle by angle, and the morphology after delay of 1-3 angles, then delaying by 1-3 angles for synchronous pressurization and stabilization, sampling fuzzing and balling to form a yarn grinding sample, and after rotating the yarn grinding sample by 180 degrees angle by angle (namely, rotating the polygonal barrels by a cycle), performing synchronous raising and morphology observation angle by angle till friction sampling and morphology measurement of each angle are finished. The measuring device and the method are quick, practical, in-situ, dynamic and precise, and use the same sample, can be used for sampling of the fuzzing and the balling, measurement of the fuzzing amount, the balling amount and the morphology of a yarn, and comprehensive evaluation of fuzzing and balling resistance of the yarn.

The invention discloses a method for detecting mannitol content of cordyceps hawkesii, and belongs to the technical field of Chinese medicinal component content measurement. The mannitol content of the cordyceps hawkesii is measured by using gas chromatography, and the efficient and accurate measurement of the mannitol content of the special cordyceps hawkesii in Shanxi is realized. The method comprises the following steps of: preparing reference solution; preparing sample solution; and performing measurement by adopting a gas chromatograph, wherein the chromatography conditions comprise that: the initial temperature of column temperature is 220 DEG C and kept for 1 minute, the temperature is raised to between 220 and 230 DEG C at the rate of 10 DEG C per minute, the raised temperature iskept for 26 minutes, the temperature of a vaporizing chamber and the temperature a hydrogen flame ionization detector are 300 DEG C, the flow rate of H2 is 34 to 40ml/min, the flow rate of air is 350to 400ml/min, the flow rate of N2 is 30 to 35/min, and the split ratio is 50:1. The method is simple, convenient, quick and accurate, has good repeatability, can measure the mannitol content of the special cordyceps hawkesii in Shanxi more scientifically and accurately, and effectively improves the quality of a product.

The invention relates to an apparatus for measuring consistency of thermal deformation and deformation force of a thermal bimetallic strip, which belongs to the field of precise instruments. The apparatus for measuring consistency of thermal deformation and deformation force of the thermal bimetallic strip comprises: a horizontal mounting table with a horizontal adjusting function; a high temperature thermotank located below the horizontal mounting table; a rotary table arranged below the horizontal mounting table in a suspended way through a main shaft and extending into the high temperature thermotank, wherein a plurality of centrosymmetric positioning clamps used for clamping the thermal bimetallic strip are arranged along the circumference of the rotary table and a rotary motor connected with the main shaft is arranged on the horizontal mounting table; a thermal deformation force measuring mechanism and a flexibility measuring mechanism arranged on the horizontal mounting table and respectively located at two sides of the main shaft; and U-shaped grooves arranged on the upper surfaces of the horizontal mounting table and the high temperature thermotank at positions corresponding to the thermal deformation force measuring mechanism and the flexibility measuring mechanism. The apparatus provided by the invention has the advantages of scientific measurement, small errors of testing results and high testing efficiency.

The invention relates to an HPLC (High Performance Liquid Chromatography) method for determining the dissolution rate of a Lercanidipine hydrochloride tablet. The method comprises the following steps: (1) test of the dissolution rate of the Lercanidipine hydrochloride tablet and preparation of a sample solution; (2) preparation of a reference solution of Lercanidipine hydrochloride; (3) HPLC determination, to be specific, performing determination analysis on the reference solution and the sample solution under the following chromatographic conditions: a chromatographic column is Waters SunFire C18 (4.6 mm*150 mm, 5 [mu]m), a flowing phase is formed by a 0.15 mol.L<-1> sodium perchlorate solution (of which the pH is adjusted by a 70% perchloric acid to be 3.0-4.0) and acetonitrile, the ratio of the sodium perchlorate solution to the acetonitrile is 40:60, the column temperature is 25-30 DEG C, the detection wavelength is 240 nm, the flow speed is 1.0 ml.min<-1>, and the sample injection amount is 40 [mu]L. A methodological test shows that the method is high in specificity, accurate in result, good in stability, simple and convenient to operate, and suitable for the determination of the dissolution rate of the Lercanidipine hydrochloride tablet, and can control the quality of the Lercanidipine hydrochloride tablet more scientifically and effectively.